ELECTRODE WITH NICKEL SUBSTRATE AND COATING OF NICKEL AND PLATINUM GROUP METAL COMPOUNDS

摘要

A substrate is coated with a solution of metal oxide precursor compounds and an etchant for etching the substrate, the metal oxide precursor compounds are thermally concentrated by removing volatiles therefrom, and the so-concentrated metal oxides precursors are thermally oxidized in-situ on the substrate. The so-formed compositions are useful, e.g., as electrode material in electrochemical apparatuses and processes.